RU2568313C2 - Method and user equipment for mapping ack/nack response messages - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: method comprises steps of: UE determining the number L of bits of ACK/NACK response messages according to predetermined conditions, wherein the predetermined conditions include at least one of: a number of downlink component carriers or cells which are allocated to the UE by a base station, and a transmission mode of each of the downlink component carriers; and the UE mapping the ACK/NACK response messages to the L bits so as to handle them correctly.

EFFECT: more correct handling of response message.

15 cl, 23 dwg

Description

FIELD OF THE INVENTION

The present invention relates to the field of communication and, in particular, to a method and user equipment for displaying ACK / NACK response messages.

State of the art

In HARQ mode (Hybrid Automatic Request for Repeat Data Transfer), the code word sent by the transmitting terminal can not only detect an error, but also have a certain ability to correct errors. After receiving the code word, the decoder of the receiving terminal first detects the situation associated with the occurrence of an error, and then automatically corrects the error if this situation is within the ability to correct errors of the code word, or the receiving terminal sends a decision signal to the transmitting terminal through the feedback channel and requests the transmitting terminal retransmit information if there are too many errors and the situation is beyond the ability to correct codeword errors, while codeword can detect an error. In OFDM (Orthogonal Frequency Division Multiplexing) systems, ACK / NACK messages are used to indicate ACK / NACK transmissions, thereby deciding whether a retransmission is necessary.

In LTE (Long Term Evolution) systems, ACK / NACK response messages can be sent separately on PUCCH (Physical Uplink Control Channel) and can also be sent along with data on PUSCH (Physical Uplink Shared Channel).

In FDD (Frequency Division Duplex) systems, since the uplink subframes correspond in turn to the downlink subframes, when the PDSCH (Physical Downlink Shared Channel) contains only one codeword stream, the UE (User Equipment) needs to be transmitted using feedback single-bit response message ACK / NACK; when the PDSCH contains two codeword streams, the UE is required to transmit, using feedback, a two-bit ACK / NACK response message; when the UE does not have a PUSCH to send in the current subframe, the UE must use the 1a / 1b format in the PUCCH to send a one / two bit ACK / NACK response message; when the UE has a PUSCH to send in the current subframe, the UE must expose the information in one / two bits from the mapping from the determined ACK / NACK state to the corresponding bit, channel coding, scrambling and modulating, and then multiplex it with the data and send it via PUSCH.

In TDD (Time Division Duplex) systems, since the uplink subframes do not alternately correspond to the downlink subframes, ACK / NACK response messages corresponding to multiple downlink subframes need to be sent on the PUCCH / PUSCH of one uplink subframe when this, the downlink subframes corresponding to the uplink subframes are combined to form a grouping window. In LTE-TDD systems, two ACK / NACK transmission modes are defined, which will be described later.

The first mode is an ACK / NACK grouping method, and the main idea of this method is to subject the ACK / NACK messages to codeword streams that correspond to certain downlink subframes and must be transmitted using feedback in the uplink subframe, logical operation "AND"; if the PDSCH transmission of one downlink subframe contains two codeword streams, the UE will feed back a two-bit ACK / NACK response message that has been subjected to the AND logical operation of the subframe and corresponds to each of the codeword streams; if the PDSCH transmission of the corresponding subframes contains only one codeword stream, the UE will transmit, using feedback, a one-bit ACK / NACK response message that has been subjected to the AND logical operation of the subframe and corresponds to the codeword stream; when the UE does not have a PUSCH to send in the current subframe, the UE will use the 1a / 1b format in the PUCCH to send a one / two bit ACK / NACK response message; when the UE has a PUSCH to send in the current subframe, the UE will expose the specified information in one / two bits to channel coding and channel interleaving, and then multiplex it with the data and send it via PUSCH.

Another mode is an ACK / NACK multiplexing method. In this method, an ACK / NACK response message will be transmitted using feedback to each of the downlink subframes, and a plurality of ACK / NACK response messages should be transmitted using feedback corresponding to the plurality of subframes, and when a certain downlink subframe is transmitted on the PDSCH contains 2 codeword streams, the ACK / NACK response message of each of the codeword streams will first undergo a logical AND operation, and, ultimately, each downlink subframe corresponds to t only one ACK / NACK reply message. When the UE does not have a PUSCH to send in the current subframe, the UE will use the channel selection format 1b in the PUCCH to send multiple ACK / NACK response messages. This method can carry no more than 4 bits of ACK / NACK response messages by combining channel selection with PUCCH format 1b. In addition, for a different number of ACK / NACKs, the LTE-TDD system defines a table for mapping different ACK / NACK states to modulation symbols sent in the selected PUCCH channel in 1b format. When the current UE has a PUSCH to send in the current subframe, the UE will expose the plurality of bits of information to mapping from a specific ACK / NACK state to a corresponding bit, channel coding and channel interleaving, and then multiplex it with the data and send it via PUSCH. The number of ACK / NACK messages that the UE needs to transmit using feedback in each subframe is determined by the configuration of the uplink / downlink subframes of the system.

The UE is configured by upper layer signaling as to whether the UE uses ACK / NACK message grouping or ACK / NACK message multiplexing to transmit ACK / NACK messages using feedback.

To meet the requirements of an advanced ITU (International Telecommunication Union), as a standard for the development of an LTE system, the LTE-A (Advanced Long-Term Evolution) system needs to support a wider system bandwidth (up to 100 MHz) and must also be backward compatible with current standards LTE systems. According to current LTE systems, the bandwidths of LTE systems can be combined to obtain a wider bandwidth, and this technology is called CA (Carrier Aggregation) technology, which can improve the spectrum utilization of the advanced IMT (International Mobile Telecommunications) system, reduce spectrum resource shortages and thus optimize the use of spectrum resources.

When the LTE-A system uses CA technology, and when the base station configures a plurality of downlink component carriers, the UE needs to transmit feedback ACK / NACK codeword streams corresponding to the plurality of downlink component carriers using feedback. In the LTE-A system, when the ACK / NACK response message is sent on the PUCCH, two feedback methods are set: the use of the channel selection PUCCH format 1b and the feedback method based on DFT-s-OFDM.

As described above, for a method using PUCCH format 1b with channel selection, for different numbers of ACK / NACK message transmissions using feedback, the corresponding mapping tables are different, and in the same mapping table, the different order of different ACK / NACK response messages will result in an excellent selection channel and modulation symbol for final transmission using feedback. Currently, in discussing the LTE-A system, the corresponding relationship between the ACK / NACK response messages of codeword streams corresponding to the downlink component carriers and the HARQ-ACK states in the mapping tables is still being considered.

For a DFT-s-OFDM based method, for different number of ACK / NACK message transmissions using feedback, the mappings from the corresponding ACK / NACK states to the corresponding bits are also different. In addition, for the number of ACK / NACK messages that the UE needs to transmit using feedback, the UE has a consistent relationship with the base station. Currently, the intended operation of the LTE-A system is that an ACK / NACK message transmitted using feedback by a UE is determined according to configurable downlink component carriers and a transmission mode of each of the downlink component carriers. For example, if the base station configures 3 carriers for the terminal, and all of these 3 carriers are configured in MIMO mode, the UE needs to transmit an ACK / NACK response of (3 × 2 = 6) bits using feedback. However, there is currently no detailed solution to display the relationship between the 6-bit information transmitted using feedback and each configurable component carrier.

Therefore, if the mapping of the relationship between the ACK / NACK response messages and the bits transmitted using feedback, or the corresponding relationship between the ACK / NACK response messages and the HARQ-ACK states in the mapping tables is perceived differently in the base station and in the terminal, the base station incorrectly accepts ACK / NACK response messages transmitted using feedback by the UE, which leads to an error.

Disclosure of invention

The main objective of the present invention is to provide a method and user equipment for displaying ACK / NACK response messages in order to at least solve the aforementioned problem.

According to one aspect of the present invention, there is provided a method for displaying ACK / NACK response messages comprising the steps of: a user equipment (UE) determining the number of L bits of ACK / NACK response messages in accordance with predetermined conditions, wherein predetermined conditions include at least one of the following:

the number of downlink component carriers or cells that are configured for the UE by the base station, and the transmission mode of each of the downlink component carriers; and the UE maps ACK / NACK response messages in L bits.

In the FDD system, the UE is configured to determine the number of L bits of the ACK / NACK response messages in accordance with the number of downlink component carriers or cells that the base station has configured for the UE and the transmission mode of each of the downlink component carriers; and the UE is configured to map ACK / NACK response messages to corresponding L bits in accordance with the order of the first codeword streams and then the component carrier downlink or cells, or with the order of the first component carrier downlink or cell and then codeword streams.

, i=0, 1, …, М-1, при этом М - количество компонентных несущих нисходящей линии связи или сот, которое базовая станция конфигурирует для UE, x_i - количество битов ответных сообщений ACK/NACK, требуемых режимом передачи соответствующей компонентной несущей нисходящей линии связи или соты, выделяемой для UE, и x_i равно единице, если режим передачи компонентной несущей нисходящей линии связи содержит один поток кодовых слов, и x_i равно двум, если режим передачи компонентных несущих нисходящей линии связи содержит два потока кодовых слов.Number of bits $$L={\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

, i = 0, 1, ..., M-1, wherein M is the number of downlink component carriers or cells that the base station configures for the UE, x _i is the number of ACK / NACK response message bits required by the transmission mode of the corresponding component carrier the downlink or cell allocated to the UE, and x _i is equal to one if the transmission mode of the component carrier downlink contains one stream of codewords, and x _i is equal to two if the transmission mode of component carriers of the downlink contains two codeword streams.

In the TDD system, the UE is configured to determine the number of L bits of the ACK / NACK response messages in accordance with the number of downlink component carriers or cells that the base station has configured for the UE, the ratio of the uplink subframes and the downlink subframes configured for the UE , and a transmission mode of each of the downlink component carriers; and the UE is configured to map ACK / NACK response messages to corresponding L bits in accordance with the order of the first codeword streams and then the component carrier downlink or cells, and ultimately the subframes, or with the order of the first codeword streams and then subframes, and ultimately, component carriers (or cells).

In a TDD system in which a base station configures a UE to perform an AND operation on ACK / NACK response messages associated with codeword streams, the UE is configured to determine the number of L bits of the ACK / NACK response messages according to the number of component carriers downlink or cells configurable for the UE and the ratio of uplink subframes and downlink subframes configurable for the UE; and the UE is configured to map ACK / NACK response messages to corresponding L bits in accordance with the order of first downlink component carriers or cells and then subframes, or with the order of first subframes and then downlink component carriers or cells.

In a TDD system in which a base station configures a UE to perform an AND operation on ACK / NACK response messages associated with codeword streams, the UE is configured to determine the number of L bits of the ACK / NACK response messages according to the number of component carriers downlink or cells configurable for the UE and the ratio of uplink subframes and downlink subframes configurable for the UE; and if the downlink assignment indicator (DAI) in the downlink control information (DCI) of the base station requires that the total number of PDCCHs accumulate in accordance with the order of the component carriers and then the subframes, the UE is configured to map ACK / NACK response messages to corresponding bit positions according to DAI.

The display conducted in relation to the subframes is carried out in the order of the subframes.

The base station configures the UE as to whether or not to perform an AND operation on ACK / NACK response messages associated with codeword streams using upper layer signaling.

, i=0, 1, …, М-1; если логическая операция «И» над ответными сообщениями ACK/NACK, связанными с потоками кодовых слов, разрешена, количество битов L равно N∗M; при этом М является количеством компонентных несущих нисходящей линии связи или сот, выделяемых базовой станцией для UE, N является количеством ответных сообщений ACK/NACK, требуемых подкадрами восходящей линии связи для обеспечения обратной связи для подкадров нисходящей линии связи, x_i является количеством битов ответных сообщений ACK/NACK, требуемых режимом передачи соответствующей компонентной несущей нисходящей линии связи или соты, выделяемой для UE, и x_i равно единице, если режим передачи компонентной несущей нисходящей линии связи содержит один поток кодовых слов, и x_i равно двум, если режим передачи компонентных несущих нисходящей линии связи содержит два потока кодовых слов.If the logical AND operation on ACK / NACK response messages associated with codeword streams is not allowed, the number of bits L is $$N\ast {\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

, i = 0, 1, ..., M-1; if the logical operation “AND” on ACK / NACK response messages associated with codeword streams is allowed, the number of bits L is N ∗ M; wherein M is the number of downlink component carriers or cells allocated by the base station for the UE, N is the number of ACK / NACK response messages required by the uplink subframes to provide feedback for the downlink subframes, x _i is the number of response message bits ACK / NACK, the desired mode of transmission corresponding component carrier or a downlink cell allocated to UE, and x _i is equal to one if the component carrier transmitting the downlink mode contains um one stream of code words, and x _i is two, if the transmission mode component carriers downlink comprises two streams of codewords.

A mapping performed on downlink component carriers or cells is performed in the order of first primary downlink component carriers or cells and then secondary downlink component carriers or cells; or the mapping is performed in accordance with the index of the corresponding downlink component carrier or cell.

If the UE is unable to detect the PDSCH in the codeword stream corresponding to the downlink component carrier or cell allocated to the UE, the UE is configured to generate a corresponding NACK response message for the downlink component carrier or cell.

The ACK response message corresponds to binary one, and the NACK response message corresponds to binary zero.

L bits are processed by channel coding, scrambling, modulation, transform precoding (DFT operation) and time domain extension, and then sent via PUCCH using DFT-s-OFDM and transmitted to the base station via PUCCH according to DFT-s- OFDM and L bits are processed by channel coding and channel interleaving, and then multiplexed with data and sent to the base station via PUSCH.

According to one aspect of the present invention, there is further provided a method for displaying ACK / NACK response messages comprising the steps of: UE mapping ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in accordance with at least one of the following: whether the component carrier of the downlink or cell is primary or secondary, the sequence of codeword streams, the component of the carrier of the downlink or cell, and the number of codeword streams containing in a downlink component carrier or cell; and the UE sends ACK / NACK response messages using channel selection with PUCCH format 1b.

The UE maps ACK / NACK response messages to a channel selection mapping table in accordance with the number of downlink component carriers or cells that the base station allocates to the UE and the transmission mode of each of the configurable downlink component carriers.

The UE maps ACK / NACK response messages to a channel selection mapping table according to whether the downlink component carrier or cell is primary or secondary, and the order of the codeword streams of the downlink component carrier or cell, or the number of codeword streams contained in a component carrier downlink or cell.

The UE maps ACK / NACK response messages to a channel selection mapping table in accordance with the order of the primary downlink component carriers or cells and then the secondary downlink carriers or cells or in accordance with the decreasing order specified by the number of codeword streams contained in the component carrier downlink or cell.

For the channel selection display table, in which M = 2,

- in the FDD system, the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the downlink primary component carriers or cell is displayed in second HARQ-ACK message;

- in a TDD system, an ACK / NACK response message of a first codeword stream of primary downlink component components or cells, or an ACK / NACK response message of a first codeword stream or second stream of codewords of downlink primary component carriers or cells subjected to a logical operation “AND” is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary downlink component components or cells or the result of ACK / NACK response messages of the first codestream output words and a second stream of code words of the secondary component carrier downlink or cells subjected to the logical operation "AND" is displayed in the second message HARQ-ACK.

For the channel selection display table, in which M = 3,

- in the FDD system, the UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table by at least one of the following:

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message An ACK, and an ACK / NACK response message of a first codeword stream of a second secondary component downlink or cell component carrier is mapped to a third HARQ-ACK message;

- the ACK / NACK response message of the first stream of code words of the primary downlink component component or cells is displayed in the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component carrier or cells is displayed in the second HARQ-ACK message and the ACK / NACK response message of the first codeword stream of the secondary downlink component components or cells is displayed in the third HARQ-ACK message;

- the ACK / NACK response message of the first codeword stream of the primary downlink component component or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword of the primary downlink component component carriers or cells is mapped to the second HARQ-ACK message , and the ACK / NACK response message of the second stream of code words of the primary component carrier downlink or cells is displayed in the third message HARQ-ACK;

- the ACK / NACK response message of the first codeword stream of the primary downlink component component or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword of the primary downlink component component carriers or cells is mapped to the second HARQ-ACK message and the ACK / NACK response message of the second codeword stream of the secondary downlink component components or cells is mapped to the third HARQ-ACK message;

- ACK / NACK response messages of component carriers or cells containing two codeword streams are respectively mapped to the first HARQ-ACK message and second HARQ-ACK message (1), and ACK / NACK response messages of component carriers or cells containing only one stream codewords are displayed in the third HARQ-ACK message;

- in the TDD system, the UE displays ACK / NACK response messages corresponding to codeword streams in a channel selection display table in the following ways:

- ACK / NACK response message of the first codeword stream of the primary component downlink or cell carriers or the result of ACK / NACK response message of the first codeword stream and the second stream of codewords of the primary downlink component carriers or cells subjected to the logical operation “AND”, is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the first secondary downlink component carriers or cells or the result of the ACK / NACK response messages of the first code layer stream in and a second stream of code words of the first secondary component carrier downlink or cells subjected to the logical operation "AND" is displayed in the second message HARQ-ACK; and an ACK / NACK response message of a first codeword stream of a second secondary component downlink or cell carrier, or an ACK / NACK response message of a first codeword stream and a second codeword stream of a second secondary downlink component carrier or cell subjected to a logical AND operation ”Is displayed in the third HARQ-ACK message.

For the channel selection display table, in which M = 4,

- in the FDD system, the UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table by at least one of the following:

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is displayed in the third HARQ message -ACK; an ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell component carrier is mapped to the third HARQ-ACK message; an ACK / NACK response message of a first codeword stream of a third secondary component downlink or cell component carrier is mapped to a fourth HARQ-ACK message;

- the ACK / NACK response message of the first stream of code words of the primary downlink component component or cells is displayed in the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component carrier or cells is displayed in the second HARQ-ACK message , the ACK / NACK response message of the first codeword stream of the first secondary component downlink component carriers or cells is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the second secondary to component downlink carriers or cells is mapped to a fourth HARQ-ACK message;

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message The ACK, the ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell carrier is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream is primary component carrier downlink or cells appears in the fourth message HARQ-ACK;

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message ACK, an ACK / NACK response message of a second codeword stream of a first secondary component downlink or cell carrier is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a first codeword stream of a second w the downlink component component carriers (or cells) are mapped to a fourth HARQ-ACK message;

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message, response an ACK / NACK message of a first codeword stream of a second secondary component downlink or cell component carrier is mapped to a third HARQ-ACK message, and an ACK / NACK message of a second codeword stream of a first secondary th component carrier or downlink cell is displayed in the fourth message HARQ-ACK;

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message An ACK, an ACK / NACK response message of a first codeword stream of a second secondary component downlink or cell carrier is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a second codeword stream of a second w the downlink component carrier or cell is mapped to a fourth HARQ-ACK message;

- ACK / NACK response messages of component carriers or cells containing two codeword streams are respectively mapped to a first HARQ-ACK message and a second HARQ-ACK message and ACK / NACK response of component carriers or cells containing only one codeword stream, respectively displayed in the third HARQ-ACK message and the fourth HARQ-ACK message;

- the ACK / NACK response message of the first stream of code words of the primary downlink component component or cells is displayed in the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component carrier or cells is displayed in the second HARQ-ACK message , the ACK / NACK response message of the first codeword stream of the first secondary component downlink or cell carrier is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream of the first secondary a downlink component carrier or cell is mapped to a fourth HARQ-ACK message;

- the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message An ACK, an ACK / NACK response message of a second stream of code words of the primary component downlink component carriers or cells is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a second stream of code words of the first secondary a downlink component carrier or cell is mapped to a fourth HARQ-ACK message;

- in the TDD system, the UE displays ACK / NACK response messages corresponding to codeword streams in a channel selection display table in the following ways:

- ACK / NACK response message of the first codeword stream of the primary component downlink or cell carriers or the result of ACK / NACK response message of the first codeword stream and the second stream of codewords of the primary downlink component carriers or cells subjected to the logical operation “AND”, is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the first secondary downlink component carriers or cells or the result of the ACK / NACK response messages of the first code layer stream in and a second stream of code words of the first secondary component carrier downlink or cells subjected to the logical operation "AND" is displayed in the second message HARQ-ACK;

- ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell carrier, or ACK / NACK response message of the first codeword stream and the second codeword stream of the second secondary downlink component carrier or cell subjected to the logical operation “AND "Is displayed in the third HARQ-ACK message;

- an ACK / NACK response message of a first codeword stream of a third secondary component downlink or cell carrier, or an ACK / NACK response message of a first codeword stream and a second codeword stream of a third secondary downlink component carrier or cell subjected to a logical operation “AND "Is displayed in the fourth HARQ-ACK message;

- ACK / NACK response message of the first codeword stream of the primary downlink component components or cells in the first subframe; or an ACK / NACK response message of the first codeword stream and the second codeword stream of the primary downlink component carriers or cells in the first subframe subjected logical operation "AND" is displayed in the first HARQ-ACK message, the response message ACK / NACK of the first stream of code words of the secondary component carrier downlink or cells in the first subframe or the result is a response of the ACK / NACK messages of the first codeword stream and the second codeword stream of the secondary downlink component carriers or cells in the first subframe subjected to the logical operation “AND”, is mapped to the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream primary downlink component carriers or cells in a second subframe or the result of ACK / NACK response messages of a first codeword stream and a second codeword stream of primary downlink component carriers or cells in a second sub the frame subjected to the logical operation "AND" is displayed in the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary component downlink carriers or cells in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second stream of code words of the secondary component carrier downlink or cells in the second subframe subjected to the logical operation "AND" is displayed in the fourth message HARQ-ACK; ACK / NACK response message of the first codeword stream of the primary component downlink or cell components in the first subframe or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers or cells in the first subframe subjected to logical operation "AND" is displayed in the first HARQ-ACK message, the response message ACK / NACK of the first stream of code words of the primary component carrier downlink or cells in the second subframe or the result is the response of the ACK / NACK messages of the first codeword stream and the second primary component carrier codeword stream or downstream cells in the second subframe subjected to the logical operation “AND” is mapped to the second HARQ-ACK message, ACK / NACK response message of the first codeword stream secondary downlink component carriers or cells in a first subframe or the result of ACK / NACK response messages of a first codeword stream and a second codeword stream; secondary component downlink component carriers or cells in a first sub the address subjected to the logical operation “AND” is displayed in the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary component downlink carriers or cells in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second stream of code words of the secondary component carrier downlink or cells in the second subframe subjected to the logical operation "AND" is displayed in the fourth message HARQ-ACK.

Secondary downlink component carriers or cells are sorted according to a predetermined order; wherein a predetermined order is obtained in accordance with the carrier index or in accordance with the value of the CIF carrier index field when cross-carrier scheduling is enabled.

According to another aspect of the present invention, a user equipment is provided, comprising: a determining module configured to determine the number of L bits of ACK / NACK response messages in accordance with predetermined conditions, wherein the predetermined conditions include at least one of the following: downlink component carriers or cells that are allocated by the UE by the base station, and a transmission mode of each of the downlink component carriers; a display module configured to display ACK / NACK response messages in L bits; and a sending module, configured to, after processing the L bits by channel coding, scrambling, modulation, precoding with transform and time domain expansion, send L bits in the PUCCH format as DFT-s-OFDM, or configured to, after processing the L bits by channel coding and channel interleaving and then multiplexing with data, send L bits to the base station via PUSCH.

According to another aspect of the present invention, a user equipment is further provided, comprising: a display module configured to display ACK / NACK response messages corresponding to codeword streams in a channel selection display table in accordance with at least one of the following: is the component carrier downlink or cell primary or secondary, a sequence of codeword streams of the component carrier of the downlink or cell and the number of streams to pa words contained in the component carrier or the downlink cell; and a sending module, configured to send ACK / NACK response messages using channel selection with 1b PUCCH format.

The present invention solves the problem that exists in the prior art and that the base station may not correctly perceive ACK / NACK response messages transmitted using feedback by the UE, thereby causing an error, and, therefore, can correctly process the response messages ACK / NACK.

Brief Description of the Drawings

The accompanying drawings described herein are used to provide further understanding of the present invention and form part of this document. Schematic embodiments of the present invention and their explanations are used to explain the present invention and do not form unacceptable limitations of the present invention. In the accompanying drawings:

1 is a flowchart of a mapping method for ACK / NACK response messages in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of a mapping method for ACK / NACK response messages in an FDD system in accordance with an embodiment of the present invention;

3 is a schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

FIG. 4 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

5 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

6 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

7 is another schematic diagram of a display method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

8 is a block diagram of a structure of a UE in accordance with an embodiment of the present invention;

9 is another flowchart of a mapping method for ACK / NACK response messages in accordance with an embodiment of the present invention;

10 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

11 is another schematic diagram of a display method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

12 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

13 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

14 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

15 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

16 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

17 is another schematic diagram of a display method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

FIG. 18 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

19 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

20 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

21 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention;

FIG. 22 is another schematic diagram of a mapping method for ACK / NACK response messages in a TDD system in accordance with an embodiment of the present invention; FIG. and

23 is a block diagram of a structure of another UE in accordance with an embodiment of the present invention.

The implementation of the invention

The present invention will now be described in more detail with reference to the accompanying drawings in combination with embodiments. It should be noted that the embodiments herein and the features of the embodiments can be combined without causing contradictions.

1 is a flowchart of a mapping method for ACK / NACK response messages in accordance with an embodiment of the present invention. As shown in FIG. 1, a flowchart comprises the following steps:

Step S102: The user equipment (UE) determines the number of L bits of the ACK / NACK response messages to be transmitted using feedback in accordance with predetermined conditions, wherein the predetermined conditions include at least one of the following: the number of component downlink carriers or cells that are allocated by the UE by the base station, and a transmission mode of each of the downlink component carriers; and

Step S104: The UE maps ACK / NACK response messages in L bits.

The following description is made, given the sending of ACK / NACK messages in 3 PUCCH format and on PUSCH. The FDD system and the TDD system are respectively described in the following preferred embodiments.

In the FDD system, the UE is configured to determine the number of L bits of ACK / NACK response messages in accordance with the number of downlink component carriers or cells that the base station allocates to the UE and the transmission mode of each of the downlink component carriers; and the UE is configured to map ACK / NACK response messages to corresponding L bits in accordance with the order of the codeword streams and then the component carriers of the downlink or cells, or with the order of the component carriers of the downlink or cells and then the codeword streams.

Preferably, the number of downlink component carriers (or cells) that the base station configures for the UE is M, and the number of ACK / NACK response message bits determined by the transmission mode of the respective downlink component carriers (or cells) configured for UE, was equal to x _i , i = 0, 1, ..., M-1, and

$$x_i=\{\begin{array}{c}\text{one}\text{,}\text{when}\text{mode}\text{transmission}\text{component}\text{carrier}\text{downward}\text{the lines}\text{communication}\text{contains}\text{only}\text{one}\text{flow}\text{coded}\text{words}\text{,}\\ \text{2}\text{,}\text{when}\text{mode}\text{transmission}\text{component}\text{carrier}\text{downward}\text{the lines}\text{communication}\text{contains}\text{two}\text{flow}\text{coded}\text{words}\text{.}\end{array}$$

.The number of bits that the UE needs to transmit using feedback is $$L={\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

.

In a TDD system, the UE is configured to determine the number of L bits of ACK / NACK response messages in accordance with the number of downlink component carriers or cells that the base station allocates to the UE by the ratio of the uplink subframes and the downlink subframes allocated to the UE , and a transmission mode of each of the downlink component carriers; and the UE is configured to map ACK / NACK response messages to corresponding L bits in accordance with the order of the codeword streams and then the downlink component carriers, and then the subframes, or with the order of the codeword streams and then the subframes and then the component carriers (or honeycomb).

Preferably, the base station configures the UE to perform an AND operation on the ACK / NACK response messages associated with the codeword streams, the UE was configured to determine the number of L bits of the ACK / NACK response messages in accordance with the number of downlink component carriers or cells allocated to the UE and the ratio of the uplink subframes and the downlink subframes allocated to the UE; and that the UE is configured to map ACK / NACK response messages to the corresponding L bits in accordance with the order of the component carriers of the downlink (or cells) and then the subframes or with the order of subframes and then the component carriers of the downlink (or cells).

Preferably, in the TDD system, the base station configures the UE to perform an AND operation on the ACK / NACK / response messages associated with the codeword streams, the UE was configured to determine the number of L bits of the ACK / NACK response messages according to the number of component the downlink carriers allocated to the UE and the ratio of the uplink subframes and the downlink subframes allocated to the UE; and so that if the downlink assignment information (DAI) in the downlink control information (DCI) of the base station requires that the total number of PDCCHs accumulate in accordance with the order of the component carriers and then the subframes, the UE is configured to display ACK response messages / NACK to the corresponding bit positions according to DAI.

Preferably, the number of downlink component carriers (or cells) that the base station configures for the UE is M, and in a specific uplink subframe, it is required to transmit feedback ACK / NACK N downlink subframes using feedback, and the number of ACK / NACK response message bits in the respective downlink component carriers (or cells) configured for the UE was x _i , i = 0, 1, ..., M-1, and

$$x_i=\{\begin{array}{c}\text{one}\text{,}\text{when}\text{mode}\text{transmission}\text{component}\text{carrier}\text{downward}\text{the lines}\text{communication}\text{contains}\text{only}\text{one}\text{flow}\text{coded}\text{words}\text{,}\\ \text{2}\text{,}\text{when}\text{mode}\text{transmission}\text{component}\text{carrier}\text{downward}\text{the lines}\text{communication}\text{contains}\text{two}\text{flow}\text{coded}\text{words}\text{.}\end{array}$$

The number of bits that the UE needs to transmit using feedback is:

$$L=\{\begin{array}{c}N{\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i},\mathrm{to}\mathrm{about}gd\mathrm{but}neR\mathrm{but}Rewen\mathrm{but}l\mathrm{about}g\mathrm{and}he\mathrm{from}\mathrm{to}\mathrm{but}\mathrm{I\; am}\mathrm{about}PeR\mathrm{but}c\mathrm{and}\mathrm{I\; am}"\mathrm{AND}"n\mathrm{but}d\mathrm{to}\mathrm{about}RRe\mathrm{to}tnsm\mathrm{and}/\mathrm{about}w\mathrm{and}b\mathrm{about}hnsm\mathrm{and}\mathrm{about}t\mathrm{at}etnsm\mathrm{and}\mathrm{from}\mathrm{about}\mathrm{about}buen\mathrm{and}\mathrm{I\; am}m\mathrm{and}me\mathrm{well}d\mathrm{at}P\mathrm{about}t\mathrm{about}\mathrm{to}\mathrm{but}m\mathrm{and}\mathrm{to}\mathrm{about}d\mathrm{about}\mathrm{at}sx\mathrm{from}l\mathrm{about}\mathrm{at}\\ NM,\mathrm{to}\mathrm{about}gd\mathrm{but}R\mathrm{but}Rewen\mathrm{but}l\mathrm{about}g\mathrm{and}he\mathrm{from}\mathrm{to}\mathrm{but}\mathrm{I\; am}\mathrm{about}PeR\mathrm{but}c\mathrm{and}\mathrm{I\; am}"\mathrm{AND}"n\mathrm{but}d\mathrm{to}\mathrm{about}RRe\mathrm{to}tnsm\mathrm{and}/\mathrm{about}w\mathrm{and}b\mathrm{about}hnsm\mathrm{and}\mathrm{about}t\mathrm{at}etnsm\mathrm{and}\mathrm{from}\mathrm{about}\mathrm{about}buen\mathrm{and}\mathrm{I\; am}m\mathrm{and}me\mathrm{well}d\mathrm{at}P\mathrm{about}t\mathrm{about}\mathrm{to}\mathrm{but}m\mathrm{and}\mathrm{to}\mathrm{about}d\mathrm{about}\mathrm{at}sx\mathrm{from}l\mathrm{about}\mathrm{at}\end{array}$$

The following preferred embodiments can be used for both the FDD system and the TDD system.

Preferably, if the mapping is carried out in accordance with component carriers (or cells), the primary component carriers of the downlink (or cells) are first displayed and then the secondary component carriers or cells are displayed; or mapping is carried out in accordance with an index of component carriers (or cells).

Preferably, if the mapping is based on the subframes, the mapping is based on the order of the subframes.

Preferably, if the UE is not capable of detecting PDSCH in the codeword stream corresponding to the downlink component carrier or cell allocated to the UE, the UE is configured to generate a corresponding NACK response message for the downlink component carrier or cell.

Preferably, the ACK response message corresponds to a binary one, and the NACK response message corresponds to a binary zero.

Preferably, the L bits are processed by channel coding, scrambling, modulation, precoding with transform and time-domain extension, and sent via PUCCH using the DFT-s-OFDM method and transmitted to the base station via PUCCH in accordance with DFT-s-OFDM; or so that the L bits are processed by channel coding and channel interleaving and then multiplexed with data and sent to the base station via PUSCH.

Preferred embodiments will now be described in conjunction with the accompanying drawings.

Preferred Embodiment 1

битов ответных сообщений ACK/NACK, которые требуется передать с использованием обратной связи, равно 7 в соответствии с количеством компонентных несущих нисходящей линии связи (или сот), которые конфигурируются для UE базовой станцией, и режимом передачи каждой из конфигурируемых компонентных несущих нисходящей линии связи. Ответные сообщения ACK/NACK, соответствующие двум потокам кодовых слов DL СС#0, представлены как {А, В}, ответные сообщения ACK/NACK, соответствующие двум потокам кодовых слов DL CC#1, представлены как {С, D}, ответное сообщение ACK/NACK, соответствующее DL СС#2, представлено как {Е}, и ответные сообщения ACK/NACK, соответствующие двум потокам кодовых слов DL СС#3, представлены как {F, G}, при этом A/B/C/D/E/F ∈ {ACK, NACK}, и, когда UE не обнаруживало PDSCH в потоке кодовых слов, соответствующем конфигурируемым компонентным несущим нисходящей линии связи (или сотам), его соответствующие ответные сообщения ACK/NACK устанавливаются как ответное сообщение NACK; порядок представлен как DL СС#0, 1, 2, 3, когда отображение проводится в соответствии с порядком компонентных несущих.As shown in FIG. 2, in the FDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bit of the ACK / NACK message using feedback. UE determines that the number $$L={\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

the ACK / NACK response message bits to be transmitted using feedback is 7 in accordance with the number of downlink component carriers (or cells) that are configured for the UE by the base station and the transmission mode of each of the configurable downlink component carriers. ACK / NACK response messages corresponding to two DL CC # codeword streams are represented as {A, B}, ACK / NACK response messages corresponding to two DL CC # 1 codeword streams are represented as {C, D}, response message The ACK / NACK corresponding to DL CC # 2 is represented as {E}, and the ACK / NACK response messages corresponding to the two DL CC # 3 codeword streams are represented as {F, G}, wherein A / B / C / D / E / F ∈ {ACK, NACK}, and when the UE did not detect PDSCH in the codeword stream corresponding to the configured downlink component carriers (or cells), its corresponding response ACK / NACK message set as the response message NACK; the order is represented as DL CC # 0, 1, 2, 3, when the mapping is carried out in accordance with the order of the component carriers.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from the codeword streams to the component carriers (or cells), the 7 bits that the UE needs to transmit using feedback correspond {A, B, C, D in sequence , E, F, G}.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from component carriers (or cells) to codeword streams, the 7 bits to be sequentially transmitted using feedback by the UE correspond to {A, C, E, F , B, D, G}.

Preferred Embodiment 2

ответных сообщений ACK/NACK равно 21, в соответствии с количеством компонентных несущих нисходящей линии связи (или сот), которые конфигурируются для UE базовой станцией, отношением конфигурируемых подкадров восходящей линии связи и подкадров нисходящей линии связи и режимом передачи каждой из конфигурируемых компонентных несущих нисходящей линии связи. Состояние обратной связи соответствующего потока кодовых слов для каждой из компонентных несущих в каждом соответствующем подкадре показано на Фиг.3, при этом А, В, С, …, U ∈ {ACK, NACK}, когда UE не обнаружило PDSCH в потоке кодовых слов, соответствующем конфигурируемым компонентным несущим нисходящей линии связи (или сотам), его соответствующие ответные сообщения ACK/NACK задаются как ошибочное ответное сообщение NACK; предположительно порядок представлен как DL СС#0, 1, 2, 3, когда отображение проводится в соответствии с порядком компонентных несущих, и порядок представлен как подкадры #n, #n+1 и #n+2, когда отображение проводится в соответствии с порядком подкадров.As shown in FIG. 3, in a TDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bits of the ACK / NACK message using feedback, and at the same time, assume that a particular uplink subframe is required to transmit ACK / NACK response messages corresponding to the downlink subframes using feedback and #n, # n + 1 and # n + 2. Assuming that the configuration was carried out by the base station in such a way that the UE does not need to carry out the logical operation “AND” on the ACK / NACK response messages between the codeword streams, the UE determines that the number $$L=N\cdot {\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

ACK / NACK response messages are 21, in accordance with the number of downlink component carriers (or cells) that are configured for the UE by the base station, the ratio of the configurable uplink subframes and the downlink subframes, and the transmission mode of each of the configurable downlink component carriers communication. The feedback state of the corresponding codeword stream for each of the component carriers in each respective subframe is shown in FIG. 3, wherein A, B, C, ..., U ∈ {ACK, NACK}, when the UE did not detect PDSCH in the codeword stream, the corresponding configurable downlink component carriers (or cells), its corresponding ACK / NACK response messages are set as an erroneous NACK response message; presumably the order is represented as DL CC # 0, 1, 2, 3 when the mapping is performed in accordance with the order of the component carriers, and the order is presented as the subframes #n, # n + 1 and # n + 2 when the mapping is in accordance with the order subframes.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from codeword streams to subframes and then component carriers (or cells), the 21 bits that the UE needs to transmit using feedback correspond {A, B, H, I, O, P, C, D, J, K, Q, R, E, L, S, F, G, M, N, T, U}.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from the codeword streams to the component carriers (or cells) and then the subframes, the 21 bits that the UE needs to transmit using the feedback correspond {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U}.

Preferred Embodiment 3

As shown in FIG. 4, in a TDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bit of the ACK / NACK message using feedback, and at the same time, let in a certain the uplink subframe is required to transmit ACK / NACK response messages of the downlink subframes #n, # n + 1 and # n + 2 using feedback. Assuming that the configuration was carried out by the base station in such a way that the UE is required to perform a logical AND operation on the ACK / NACK response messages between the codeword streams, the UE determines that the number of L = NM bits of the ACK / NACK response messages is 12, according to the number of downlink component carriers (or cells) that are configured for the UE by the base station, the ratio of the configurable uplink subframes and the downlink subframes, and the transmission mode of each of the configurable component downlink carriers. The feedback state of the corresponding codeword stream or the feedback state of the result of the logical operation “AND” of the corresponding codeword streams for each of the component carriers in each corresponding subframe is shown in FIG. 4, wherein A, B, C, ..., L ∈ {ACK , NACK}, and when the UE has not detected a PDSCH in the codeword stream corresponding to the configured downlink component carriers (or cells), its corresponding ACK / NACK response messages are set as an erroneous NACK response message; presumably the order is represented as DL CC # 0, 1, 2, 3 when the mapping is performed in accordance with the order of the component carriers, and the order is presented as the subframes #n, # n + 1 and # n + 2 when the mapping is in accordance with the order subframes.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from codeword streams to subframes and then component carriers (or cells), the 12 bits that the UE needs to transmit using feedback correspond {A, E, I, B, F, J, C, G, K, D, H, L}.

When the UE maps the corresponding ACK / NACK response messages in L bits in order from the codeword streams to the component carriers (or cells) and then the subframes, the 12 bits that the UE needs to transmit using the feedback correspond to {A, B, C, D, E, F, G, H, I, J, K, L}.

Preferred Embodiment 4

As shown in FIG. 5, in a TDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bit of the ACK / NACK message using feedback, and at the same time, let in a certain the uplink subframe is required to transmit ACK / NACK response messages of the downlink subframes #n, # n + 1 and # n + 2 using feedback. Assuming that the configuration was carried out by the base station in such a way that the UE is required to perform a logical AND operation on the ACK / NACK response messages between the codeword streams, the UE determines that the number of L = NM bits of the ACK / NACK response messages is 12, according to the number of downlink component carriers (or cells) that are configured for the UE by the base station, the ratio of the configurable uplink subframes and the downlink subframes, and the transmission mode of each of the configurable onentnyh downlink carriers. The feedback state of the corresponding codeword stream or the feedback state of the result of the logical operation “AND” of the corresponding codeword streams for each of the component carriers in each corresponding subframe is shown in FIG. 5, with A, B, C, ..., L ∈ {ACK , NACK}, and when the UE has not detected a PDSCH in the codeword stream corresponding to the configured downlink component carriers (or cells), its corresponding ACK / NACK response messages are set as an erroneous NACK response message; presumably, the DAI downlink assignment information in the base station DCI downlink control information refers to the number of PDCCHs accumulated in accordance with the order from component carriers to subframes, and DAI is indicated using 2 bits, with 2 bits indicating the following 4 different condition.

The first state (“00”) refers to a situation where the number of scheduled PDCCHs that have been accumulated so far is 1/5/9/13/17.

The second state (“01”) refers to a situation where the number of scheduled PDCCHs that have been accumulated to date is 2/6/10/14/18.

The third state (“10”) refers to a situation where the number of scheduled PDCCHs that have been accumulated to date is 3/7/11/15/19.

The fourth state (“11”) refers to a situation where the number of scheduled PDCCHs that have been accumulated to date is 4/8/12/16/20.

The UE detects the DAI and determines the number of scheduled PDCCHs that are indicated by the DAI, as follows:

- when the DAI detected by the UE is the first state (“00”) and the state appears at the first time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 1;

- when the DAI detected by the UE is the first state (“00”) and the state appears at the second point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 5;

- when the DAI detected by the UE is the first state (“00”) and the state appears at the third point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 9;

- when the DAI detected by the UE is the first state (“00”), and the state appears at the fourth point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 13;

- when the DAI detected by the UE is the first state (“00”), and the state appears at the fifth point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 17.

Similarly, when the DAI detected by the UE is a second state (“01”), and the state appears at the first / second / third / fourth / fifth point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 2/6 / 10/14/18.

Similarly, when the DAT detected by the UE is a third state (“10”), and the state appears at the first / second / third / fourth / fifth point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 3/7 / 11/15/19.

Similarly, when the DAI detected by the UE is a second state (“11”), and the state appears at the first / second / third / fourth / fifth point in time, the UE determines that the number of scheduled PDCCHs indicated by the DAI is 4/8 / 12/16/20.

As a result, the DAI values detected by the UE in the respective subframes of the respective component carriers are shown in FIG.

, и 12 битов, которые UE требуется передать с использованием обратной связи, последовательно соответствуют {A, B, C, D, E, F, G, H, I, J, K, L}.According to the DAI, the UE maps the corresponding ACK / NACK response messages to bit positions corresponding to $$V_{DAI}^{DL}-\mathrm{one}$$

, and the 12 bits that the UE needs to transmit using feedback correspond sequentially {A, B, C, D, E, F, G, H, I, J, K, L}.

Preferred Embodiment 5

As shown in FIG. 6, in a TDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bit of the ACK / NACK message using feedback, and at the same time, let in a certain the uplink subframe is required to transmit ACK / NACK response messages of the downlink subframes #n, # n + 1 and # n + 2 using feedback. Assuming that the configuration was carried out by the base station in such a way that the UE is required to perform a logical AND operation on the ACK / NACK response messages between the codeword streams, the UE determines that the number of L = NM bits of the ACK / NACK response messages is 12, according to the number of downlink component carriers (or cells) that are configured for the UE by the base station, the ratio of the configurable uplink subframes and the downlink subframes, and the transmission mode of each of the configurable component downlink carriers. The feedback state of each of the component carriers in the corresponding codeword stream of the corresponding subframes or the feedback state of each of the component carriers subjected to the logical operation “AND” of the codeword stream is shown in FIG. 6, wherein A, B, C, ..., L ∈ {ACK, NACK}, and when the UE has not detected a PDSCH in the codeword stream corresponding to the configured downlink component carriers (or cells), its corresponding ACK / NACK response messages are set as an erroneous NACK response message.

The value represented by the DAI on the base station side and the explanation of the DAI on the UE side are the same as in the preferred embodiment 4.

, и 12 битов, которые UE требуется передать с использованием обратной связи, последовательно соответствуют {A, B, D, E, G, H, I, J, X, X, X, X}. При этом последние 4 бита не используются для того, чтобы отображать ответные сообщения ACK/NACK соответствующих компонентных несущих подкадров нисходящей линии связи, поскольку такие ответные сообщения ACK/NACK являются сообщениями NACK.In contrast to preferred embodiment 4, in which all configurable component carriers of all downlink subframes were scheduled, in this embodiment, configurable downlink component carriers of some subframes were not scheduled, as shown in FIG. 6, DL CC # 2 in subframe #n was not scheduled, DL SS # 1 in subframe # n + 1 and DL CC # 2 and 3 in subframe # n + 2 were not scheduled, and then, in accordance with the DAI, the UE displays corresponding ACK / NACK response messages to bit positions, respectively howling $$V_{DAI}^{DL}-\mathrm{one}$$

, and the 12 bits that the UE needs to transmit using feedback correspond sequentially {A, B, D, E, G, H, I, J, X, X, X, X}. However, the last 4 bits are not used to display ACK / NACK response messages of the corresponding downlink component carrier subframes, since such ACK / NACK response messages are NACK messages.

Preferred Embodiment 6

As shown in FIG. 7, in a TDD system, the base station configures 4 downlink component carriers {DL CC # 0, DL CC # 1, DL CC # 2, DL CC # 3} for the UE, with each of the DL CCs # 0/1/3 needs to transmit 2 bits of the ACK / NACK message using feedback, while DL CC # 2 needs to transmit 1 bit of the ACK / NACK message using feedback, and at the same time, let in a certain the uplink subframe is required to transmit ACK / NACK response messages of the downlink subframes #n, # n + 1 and # n + 2 using feedback. Assuming that the configuration was carried out by the base station in such a way that the UE is required to perform a logical AND operation on the ACK / NACK response messages between the codeword streams, the UE determines that the number of L = NM bits of the ACK / NACK response messages is 12, according to the number of downlink component carriers (or cells) that are configured for the UE by the base station, the ratio of the configurable uplink subframes and the downlink subframes, and the transmission mode of each of the configurable component downlink carriers. The feedback state of the corresponding codeword stream or the feedback state of the result of the logical operation “AND” of the corresponding codeword streams for each of the component carriers in each corresponding subframe is shown in Fig. 7, with A, B, C, ..., L ∈ {ACK , NACK}, and when the UE has not detected a PDSCH in the codeword stream corresponding to the configured downlink component carriers (or cells), its corresponding ACK / NACK response messages are set as an erroneous NACK response message.

The value represented by the DAI on the base station side and the explanation of the DAI on the UE side are the same as in the preferred embodiment 4.

, и 12 битов, которые UE требуется передать с использованием обратной связи, последовательно соответствуют {А, В, Х, E, G, H, I, J, X, X, X, X}. При этом неважно, что второй бит из битов, передаваемых с использованием обратной связи, соответствует состоянию какой-то компонентной несущей нисходящей линии связи какого-то подкадра нисходящей линии связи, так как все соответствующие ответные сообщения ACK/NACK являются сообщения NACK, и в равной степени неважно, как отображать последние 4 бита в ответные сообщения ACK/NACK соответствующих компонентных несущих подкадров нисходящей линии связи, поскольку такие ответные сообщения ACK/NACK по существу являются сообщениями NACK.In contrast to preferred embodiment 4, in which all configurable component carriers of all downlink subframes were scheduled, in this embodiment, configurable downlink component carriers of some subframes were not scheduled, as shown in FIG. 7, DL CC # 2 and 3 in subframe #n were not scheduled, DL CC # 1 in subframe # n + 1 and DL CC # 2 and 3 in subframe # n + 2 were not scheduled. Unlike the preferred embodiment 5, the UE has an error consisting in the loss of PDCCH, i.e. the base station has scheduled PDSCHs in the component carriers of some subframes, while the UE cannot detect PDSCHs, i.e. it did not detect the corresponding PDCCH, and this error can be detected in accordance with DAI. More specifically, as shown in FIG. 7, the DAI in the downlink component carriers corresponding to all the downlink subframes detected by the UEs in sequence is 1, 2, 4, 5, 6, 7, and 8, and according to the detected DAI, the UE may determine that the PDCCH for which the DAI corresponds to 3 has been lost, and thus, the state of the second bit (from 0) of the L bits corresponding to the DAI, which is 3, is set as a NACK message, and then the UE, in accordance with DAI, maps the corresponding ACK / NACK response messages to bit positions, respectively uyuschie $$V_{DAI}^{DL}-\mathrm{one}$$

, and the 12 bits that the UE needs to transmit using feedback correspond in sequence to {A, B, X, E, G, H, I, J, X, X, X, X}. It doesn’t matter that the second bit of the bits transmitted using feedback corresponds to the state of some component downlink carrier of some downlink subframe, since all the corresponding ACK / NACK response messages are NACK messages, and in equal it doesn’t matter how to map the last 4 bits to the ACK / NACK response messages of the corresponding downlink component carrier subframes, since such ACK / NACK response messages are essentially NACK messages.

The UE is further provided in another embodiment and is configured to implement the above embodiments and their preferred embodiments. Those of the embodiments that have been described previously will not be discussed further. Next, UE modules will be described in detail.

FIG. 8 is a block diagram of a structure of a UE according to an embodiment of the present invention. As shown in FIG. 8, the UE comprises a determination unit 82 and a display unit 84, which will be described later.

The determination unit 82 is configured to determine the number of L bits of the ACK / NACK response messages according to predetermined conditions, the predetermined conditions comprising at least one of the following: the number of downlink component carriers or cells that are configured for the UE by the base station , and a transmission mode of each of the downlink component carriers; and the display unit 84 is connected to the determination unit 82 and is configured to display ACK / NACK response messages in L bits.

The following embodiments are used to send ACK / NACK messages in PUCCH format 1b using channel selection.

9 is a flowchart of a mapping method for ACK / NACK response messages in accordance with an embodiment of the present invention. As shown in FIG. 9, the flowchart comprises the following steps.

Step S902: The UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in accordance with at least one of the following: whether the component carriers of the downlink or cells are primary or secondary, the order of the codeword streams of the component carriers downlink or cells and the number of codeword streams contained in downlink component carriers or cells; and

Step S904: The UE sends ACK / NACK response messages in PUCCH format 1b using channel selection.

Preferably, the UE can map ACK / NACK response messages to channel selection mapping tables in accordance with the number M of downlink component carriers or cells that the base station configures for it.

Preferably, the UE can map ACK / NACK response messages to channel selection mapping tables according to whether the downlink component carriers or cells are primary or secondary and the order of the codeword streams of the downlink component carriers or cells or the number of codestream streams words contained in downlink component carriers or cells.

Preferably, the UE can map ACK / NACK response messages to channel selection mapping tables in order from primary downlink component carriers or cells to secondary downlink carriers or cells, or according to the number of codeword streams contained in the component downlink carriers or cells, in order from largest to smallest.

Next, a description will be made with respect to the FDD system and the TDD system.

In an FDD system, for a channel selection mapping table in which M = 2, an ACK / NACK response message of a first codeword stream of a primary downlink component carrier (or cells) is mapped to a first HARQ-ACK message, and an ACK / NACK response message of a first the codeword stream of the secondary downlink component carriers (or cells) is mapped to the second HARQ-ACK message (for example, this applies to the case of 2CC and one codeword stream).

For a channel selection mapping table in which M = 3, an ACK / NACK response message of a first codeword stream of primary component downlink carriers (or cells) is mapped to a first HARQ-ACK message, and an ACK / NACK response message of a first codeword stream first a secondary downlink component carrier (or cell) is mapped to a second HARQ-ACK message; and the ACK / NACK response message of the first codeword stream of the second secondary component downlink component carrier (or cell) is displayed in the third HARQ-ACK message (for example, this applies to the case of 3CC and one codeword stream);

Or, the ACK / NACK response message of the first stream of code words of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component component carriers (or cells) is mapped to the second a HARQ-ACK message, and an ACK / NACK response message of the first codeword stream of the secondary downlink component component carriers (or cells) is mapped to the third HARQ-ACK message (for example, this applies to cases 2CC, PCC: MIMO, SCC1-2: SIMO );

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the downlink primary component carriers (or cells) is mapped to the second a HARQ-ACK message, and an ACK / NACK response message of a second stream of code words of the primary downlink component component carriers (or cells) is mapped to the third HARQ-ACK message (for example, this applies to cases 2CC, PCC: MIMO, SCC1-2: SIMO );

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the downlink primary component carriers (or cells) is mapped to the second a HARQ-ACK message, and an ACK / NACK response message of a second stream of code words of the secondary downlink component component carriers (or cells) is mapped to a third HARQ-ACK message (for example, this applies to cases 2CC, PCC: MIMO, SCC1-2: SIMO );

Or ACK / NACK response messages of component carriers (or cells) containing two codeword streams are respectively mapped to the HARQ-ACK (0) message (i.e., the first HARQ-ACK message) and the HARQ-ACK message (1) (t i.e., a second HARQ-ACK message), and component-carrier (or cell) ACK / NACK response messages containing only one codeword stream are mapped to a HARQ-ACK (2) message (i.e., a third HARQ-ACK message) .

For a channel selection mapping table in which M = 4, an ACK / NACK response message of a first codeword stream of primary component downlink carriers (or cells) is mapped to a first HARQ-ACK message, and an ACK / NACK response message of a first codeword stream first a secondary downlink component carrier (or cell) is mapped to a third HARQ-ACK message; an ACK / NACK response message of a first codeword stream of a second secondary downlink component component (or cell) is mapped to a third HARQ-ACK message; an ACK / NACK response of a first codeword stream of a third secondary downlink component carrier (or cell) is mapped to a fourth HARQ-ACK message (for example, this applies to 4CC cases, conventional SIMO);

Or, the ACK / NACK response message of the first stream of code words of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component component carriers (or cells) is mapped to the second a HARQ-ACK message, an ACK / NACK response message of a first codeword stream of a first secondary component downlink carrier carrier (or cell) is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a first codeword stream is a second second another downlink component carrier (or cell) is mapped to a fourth HARQ-ACK message (for example, this applies to cases of 3CC, BCC: MIMO, SCC1-2: SIMO);

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink component component carrier (or cells) is displayed in the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the second secondary component downlink carrier carrier (or cell) is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream primary downlink component carriers (or cells) are displayed in the fourth HARQ-ACK message (for example, this applies to cases of 3CC, BCC: MIMO, SCC1-2: SIMO);

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink component component carrier (or cells) is displayed in the second HARQ-ACK message, the ACK / NACK response message of the second codeword stream of the first secondary component downlink carrier carrier (or cell) is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the first second codeword stream a second secondary downlink component carrier (or cell) is mapped to a fourth HARQ-ACK message (for example, this applies to cases of 3CC, BCC: SIMO, SCC1: MIMO, SCC2; SIMO);

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink component component carrier (or cells) is displayed in the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the second secondary component downlink carrier carrier (or cell) is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream the second secondary component downlink carrier carrier (or cells) is mapped to the fourth HARQ-ACK message (for example, this applies to cases of 3CC, BCC: SIMO, SCC1: MIMO, SCC2: SIMO);

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink component component carrier (or cells) is displayed in the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the second secondary component downlink component carrier (or cell) is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream second a second secondary downlink component carrier (or cell) is mapped to a fourth HARQ-ACK message (for example, this applies to cases of 3CC, BCC: SIMO, SCC1: SIMO, SCC2: MIMO);

Or ACK / NACK response messages of component carriers (or cells) containing two codeword streams are respectively mapped to a HARQ-ACK (0) message and a HARQ-ACK message (1), and component carrier ACK / NACK (or cell) response messages containing only one stream of codewords are respectively mapped to the HARQ-ACK (2) message and the HARQ-ACK message (3);

Or, the ACK / NACK response message of the first stream of code words of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second stream of code words of the primary downlink component component carriers (or cells) is mapped to the second a HARQ-ACK message, an ACK / NACK response message of a first codeword stream of a first secondary component downlink component carrier (or cell) is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a second codeword stream of a first second another downlink component carrier (or cell) is mapped to the fourth HARQ-ACK message (for example, this applies to 2CC, BCC: MIMO, SCC1: MIMO);

Or, the ACK / NACK response message of the first codeword stream of the primary downlink component component carriers (or cells) is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink component component carrier (or cells) is displayed in a second HARQ-ACK message, an ACK / NACK response message of a second stream of code words of the primary component downlink carriers (or cells) is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a second codeword stream of the first second the downlink component carrier (or cell) is mapped to the fourth HARQ-ACK message (for example, this applies to 2CC, BCC: MIMO, SCC1: MIMO).

In an FDD system, one property of channel selection is that it does not have spatial grouping, while in a TDD system, spatial grouping must be performed, otherwise it cannot be used.

In a TDD system for a channel selection mapping table in which M = 2, an ACK / NACK response message of a first stream of primary component carrier words of a downlink (or cells) or an ACK / NACK response message of a first codeword stream and a second codestream the words of the primary component downlink component carriers (or cells) subjected to the logical operation “AND” are mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary downlink component carriers (or cells) or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the secondary downlink component carriers (or cells) subjected to the logical operation “AND” is displayed in the second HARQ-ACK message (for example, this applies to the case of 2CC and one subframe corresponding to one downlink subframe).

For a channel selection mapping table in which M = 3, an ACK / NACK response message of a first stream of primary component codewords of a downlink (or cells) or a result of ACK / NACK response messages of a first codeword stream and a second primary component carrier codewords stream the downlink (or cells) subjected to the logical operation “AND” is mapped to the first HARQ-ACK message and the ACK / NACK response of the first codeword stream of the first secondary downlink component component (or cell) or cut the majority of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the first secondary downlink component carrier (or cells) subjected to the logical operation “AND” are mapped to the second HARQ-ACK message; and an ACK / NACK response message of the first codeword stream of the second secondary component downlink (or cell) carrier or an ACK / NACK response message of the first codeword stream and the second codeword stream of the second secondary downlink component (or cell) carrier logical operation “AND” is displayed in the third HARQ-ACK message (for example, this applies to the case of 3CC and one subframe corresponding to one downlink subframe).

For a channel selection mapping table in which M = 4, an ACK / NACK response message of a first stream of primary component codewords of a downlink (or cells) or an ACK / NACK response message of a first codeword stream and a second stream of primary components of a codeword the downlink (or cells) subjected to the logical operation “AND” is mapped to the first HARQ-ACK message and the ACK / NACK response of the first codeword stream of the first secondary downlink component component (or cell) or cut the majority of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the first secondary downlink component carrier (or cell) subjected to the logical operation “AND” are mapped to the second HARQ-ACK message; ACK / NACK response message of the first codeword stream of the second secondary downlink component carrier (or cell) or ACK / NACK response message of the first codeword stream and second second codeword stream of the second secondary downlink component carrier (or cell) subjected to logical "AND" operation is displayed in the third HARQ-ACK message; ACK / NACK response message of the first codeword stream of the third secondary downlink component carrier (or cell) or ACK / NACK response message of the first codeword stream and second second codeword stream of the third secondary downlink component carrier (or cell) subjected to logical the AND operation is displayed in the fourth HARQ-ACK message (for example, this applies to the case of 4CC and one subframe corresponding to one downlink subframe);

Either the ACK / NACK response message of the first codeword stream of the primary component downlink component carriers (or cells) in the first subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers (or cells) in the first subframe subjected to the logical operation “AND” is mapped to the first HARQ-ACK message, an ACK / NACK response message of the first codeword stream of the secondary downlink component carriers (or cells) in the first subframe or the result ACK / NACK response messages of the first codeword stream and second codeword of the secondary component downlink component carriers (or cells) in the first subframe subjected to the logical operation “AND” are mapped to the second HARQ-ACK message, ACK / NACK response message of the first stream the code words of the primary component downlink component carriers (or cells) in the second subframe or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers (or cells) in a torch of a subframe subjected to logical operation “AND” is mapped to a third HARQ-ACK message, and an ACK / NACK response message of a first stream of code words of secondary component downlink carriers (or cells) in a second subframe or a result of ACK / NACK response messages of the first stream code words and a second stream of code words of the secondary component downlink carriers (or cells) in the second subframe subjected to the logical operation “AND” is displayed in the fourth HARQ-ACK message (for example, this applies to the case of 2CC and two subframes Sometimes first MOP and then subframe);

Either the ACK / NACK response message of the first codeword stream of the primary component downlink component carriers (or cells) in the first subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers (or cells) in the first subframe subjected to the logical operation “AND” is mapped to the first HARQ-ACK message, the ACK / NACK response of the first stream of code words of the primary component downlink carriers (or cells) in the second subframe or result ACK / NACK response messages of the first codeword stream and the second primary code carrier component downlink (or cell) codeword stream in the second subframe subjected to the logical operation “AND” are mapped to the second HARQ-ACK message, ACK / NACK response message of the first stream the code words of the secondary component downlink component carriers (or cells) in the first subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream of the secondary downlink component carriers (or cells) in the first subframe subjected to the logical AND operation is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary downlink component carriers (or cells) in the second subframe or the result of the ACK / NACK response messages of the first stream code words and a second stream of code words of the secondary component downlink carriers (or cells) in the second subframe subjected to the logical operation “AND” is displayed in the fourth HARQ-ACK message (for example, this applies to the case of 2CC and two subframes the occasion of the first sub-frame, and then the SS).

For the preferred embodiment described above, the secondary downlink component carriers (or cells) may be sorted in a predetermined order such that a first downlink component carrier (or cell), a second downlink secondary component carrier (or cell) and a third secondary downlink component carrier (or cell). For example, a predetermined order can be obtained in accordance with the carrier index or in accordance with the value of the CIF carrier index field when cross-carrier scheduling is enabled.

Preferred embodiments will now be described in conjunction with the accompanying drawings.

Preferred Embodiment 7

As shown in FIG. 10, in the FDD system, when the configuration was performed by the base station such that the UE uses the channel selection PUCCH format 1b for transmitting ACK / NACK response messages using feedback, let, for example, the base station configures DL PCC and SCC for the UE, both of which are transmission modes of a single codeword stream, the UE uses a mapping table with M = 2 to transmit ACK / NACK response messages during feedback, the ACK / NACK response message of the first codestream words in The PCC is mapped to the HARQ-ACK (0) message, and the ACK / NACK response of the first codeword stream in the SCC is mapped to the HARQ-ACK (1).

Preferred Embodiment 8

As shown in FIG. 11, in the FDD system, when the configuration was carried out by the base station in such a way that the UE uses the channel selection PUCCH format 1b to transmit ACK / NACK response messages using feedback, let, for example, the base station configures DL PCC, SCC # 1 and SCC # 2 for the UE, all of which are transmission modes of a single codeword stream, the UE uses a mapping table with M = 3 to transmit ACK / NACK response messages during feedback, with the response ACK / NACK message of the first stream is coded x words in the PCC is mapped to a HARQ-ACK (0) message, an ACK / NACK response of the first codeword stream in SCC # 1 is mapped to a HARQ-ACK (1) message, and an ACK / NACK response of the first codeword stream in SCC # 2 is displayed in the HARQ-ACK message (2).

In this case, the two secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1 and the second downlink secondary component carrier (or cell) in SCC are obtained # 2

Preferred Embodiment 9

As shown in FIG. 12, in the FDD system, when the configuration was carried out by the base station in such a way that the UE uses the channel selection PUCCH format 1b for transmitting ACK / NACK response messages using feedback, let, for example, the base station configures DL PCC and SCC for the UE, while PCC is the transmission mode of two codeword streams, and SCC is the transmission mode of one codeword stream, the UE will use the mapping table with M = 3 to transmit ACK / NACK response messages during feedback communication wherein the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the second codeword stream in the PCC is mapped to the HARQ-ACK (1) message, and the ACK / NACK response message the first codeword stream in the SCC is mapped to the HARQ-ACK message (2);

Or, the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC is mapped to the HARQ-ACK message (1), and the ACK / NACK response of the second the codeword stream in the BSS is displayed in the HARQ-ACK message (2).

Preferred Embodiment 10

As shown in FIG. 13, in the FDD system, when the configuration was carried out by the base station such that the UE uses the channel selection PUCCH format 1b for feedback transmission of ACK / NACK feedback, and let, for example, the base station configure DL PCC and SCC for the UE, wherein PCC is a transmission mode of one codeword stream, and SCC is a transmission mode of two codeword streams, then the UE will use a mapping table with M = 3 to transmit ACK / NACK response messages in feedback reverse time with bind, and the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC is mapped to the HARQ-ACK (1) message, and the ACK / The NACK of the second codeword stream in the SCC is mapped to the HARQ-ACK (2) message.

Preferred Embodiment 11

As shown in FIG. 14, in the FDD system, when the configuration was performed by the base station such that the UE uses the channel select PUCCH format 1b for transmitting ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC, SCC # 1, SCC # 2 and SCC # 3 for the UE, all of which are transmission modes of a single codeword stream, the UE will use a mapping table with M = 4 to transmit ACK / NACK response messages using feedback feedback time, and the response message ACK / NACK of the first the codeword stream in the PCC is mapped to the HARQ-ACK message (0), the ACK / NACK response message of the first codeword stream in the SCC # 1 is mapped to the HARQ-ACK message (1), the ACK / NACK response message of the second codeword stream in the SCC # 2 is mapped to the HARQ-ACK message (2), and the ACK / NACK response message of the second codeword stream in SCC # 3 is mapped to the HARQ-ACK message (3).

In this case, the three secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component (or cells) carrier in SCC # 1, the second downlink (or cell) secondary component carrier in SCC are obtained # 2 and the third secondary downlink component carrier (or cells) in SCC # 3.

Preferred Embodiment 12

As shown in FIG. 15, in the FDD system, when the configuration was performed by the base station in such a way that the UE uses the channel selection PUCCH format 1b for transmission using feedback feedback ACK / NACK, and let, for example, the base station configures DL PCC, SCC # 1 and SCC # 2 for the UE, while PCC is the transmission mode of two codeword streams, and SCC # 1 and SCC # 2 are transmission modes of one codeword stream, then the UE will use a mapping table with M = 4 for feedback feedback ACK / NACK during o feedback, wherein the ACK / NACK response message of the first codeword stream in the PCC is displayed in the HARQ-ACK message (0), the ACK / NACK response message of the second codeword stream in the PCC is displayed in the HARQ-ACK message (1), the response message is ACK / The NACK of the first codeword stream in SCC # 1 is mapped to a HARQ-ACK (2) message, and the ACK / NACK response of the first codeword stream in SCC # 2 is mapped to a HARQ-ACK (3);

Or the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC # 1 is mapped to the HARQ-ACK (1) message, the response message of the first codeword stream words in SCC # 2 is displayed in the HARQ-ACK message (2), and the ACK / NACK response message of the second codeword stream in the PCC is displayed in the HARQ-ACK message (3);

In this case, the two secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1 and the second downlink secondary component carrier (or cell) in SCC are obtained # 2

Preferred Embodiment 13

As shown in FIG. 16, in the FDD system, when the configuration was performed by the base station in such a way that the UE uses the channel select PUCCH format 1b for transmitting ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC, SCC # 1 and SCC # 2 for the UE, wherein PCC is a transmission mode of one codeword stream, SCC # 1 is a transmission mode of two codeword streams, and SCC # 2 is a transmission mode of one codeword stream, then the UE will use the mapping table with M = 4 for transmission using feedback of ACK / NACK response messages during feedback, wherein the ACK / NACK response of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in SCC # 1 is displayed in the HARQ-ACK message (1), the ACK / NACK response message of the second codeword stream in SCC # 1 is displayed in the HARQ-ACK message (2), and the ACK / NACK response message of the first codeword stream in SCC # 2 is displayed in the HARQ- message ASA (3);

Or, the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC # 1 is mapped to the HARQ-ACK (1) message, the ACK / NACK response message the first codeword stream in SCC # 2 is displayed in the HARQ-ACK message (2), and the ACK / NACK response message of the second codeword stream in SCC # 1 is displayed in the HARQ-ACK message (3);

In this case, the two secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1 and the second downlink secondary component carrier (or cell) in SCC are obtained # 2

Preferred Embodiment 14

As shown in FIG. 17, in the FDD system, when the configuration was performed by the base station in such a way that the UE uses the channel select PUCCH format 1b for transmitting ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC, SCC # 1 and SCC # 2 for the UE, wherein PCC is the transmission mode of one codeword stream, SCC # 1 is the transmission mode of one codeword stream, and SCC # 2 is the transmission mode of two codeword streams, then the UE will use a mapping table with M = 4 for transmission using m feedback of ACK / NACK response messages during feedback, wherein the ACK / NACK response of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC # 1 is displayed in the HARQ-ACK message (1), the ACK / NACK response message of the first codeword stream in SCC # 2 is displayed in the HARQ-ACK message (2), and the ACK / NACK response message of the second codeword stream in SCC # 2 is displayed in the HARQ- message ASA (3);

In this case, the two secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1 and the second downlink secondary component carrier (or cell) in SCC are obtained # 2

Preferred Embodiment 15

As shown in FIG. 18, in the FDD system, when the configuration was performed by the base station such that the UE uses the channel select PUCCH format 1b to transmit ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC and SCC for the UE, while PCC and SCC are the transmission modes of the two codeword streams, the UE will use the mapping table with M = 4 to transmit ACK / NACK response messages during feedback, the ACK response message / Nack the first thread to single words in the PCC is displayed in the HARQ-ACK message (0), an ACK / NACK response of the second codeword stream in the PCC is displayed in the HARQ-ACK (1) message, the ACK / NACK response of the first codeword stream in the SCC is displayed in the HARQ message -ACK (2), and the ACK / NACK response message of the second codeword stream in the SCC is mapped to the HARQ-ACK message (3);

Or the ACK / NACK response message of the first codeword stream in the PCC is mapped to the HARQ-ACK (0) message, the ACK / NACK response message of the first codeword stream in the SCC is mapped to the HARQ-ACK message (1), the ACK / NACK response message of the second stream the codewords in the PCC are mapped to the HARQ-ACK (2) message, and the ACK / NACK response of the second codeword stream in the SCC is mapped to the HARQ-ACK (3).

Preferred Embodiment 16

As shown in FIG. 19, in the TDD system, when the configuration was performed by the base station such that the UE uses the channel select PUCCH format 1b to transmit ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC and SCC for the UE, and the determined uplink subframe corresponds to only one downlink subframe, then the UE will use the mapping table with M = 2 to transmit ACK / NACK response messages during feedback, from a distinct ACK / NACK message of the first codeword stream in the PCC or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC subjected to the logical operation “AND” is displayed in the HARQ-ACK (0) message, and the response message The ACK / NACK of the first codeword stream in the SCC or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the SCC subjected to the logical operation “AND” is mapped to the HARQ-ACK message (1).

Preferred Embodiment 17

As shown in FIG. 20, in a TDD system, when the configuration was done by the base station such that the UE uses the channel select PBCCH lb format to transmit ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC and SCC # 1 and # 2 for the UE, and the determined uplink subframe corresponds to only one downlink subframe, then the UE will use the mapping table with M = 3 to transmit ACK / NACK response messages during the feedback during feedback connection, haircut m ACK / NACK response message of the first codeword stream in the PCC or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC subjected to the logical operation “AND” is displayed in the HARQ-ACK (0) message, the response message ACK / NACK of the first codeword stream in SCC # 1 or the result of ACK / NACK response messages of the first codeword stream and second codeword stream in SCC # 1, subjected to the logical operation “AND”, is displayed in the HARQ-ACK (1) message, the response ACK / NACK message of the first codeword stream in SCC # 2 or result response s ACK / NACK messages of the first stream of codewords and the second codewords in the stream SCC # 2 subjected to the logical operation "AND" is displayed in the message HARQ-ACK (2);

In this case, the two secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1 and the second downlink secondary component carrier (or cell) in SCC are obtained # 2

Preferred Embodiment 18

As shown in FIG. 21, in a TDD system, when the configuration was performed by the base station such that the UE uses the channel select PUCCH format 1b to transmit ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC and SCC # 1, # 2 and # 3 for the UE, and the determined uplink subframe corresponds to only one downlink subframe, then the UE will use the mapping table with M = 4 to transmit ACK / NACK response messages using feedback during feedback, when than the ACK / NACK response message of the first codeword stream in the PCC or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC subjected to the logical operation “AND” is displayed in the HARQ-ACK (0) message, the response message ACK / NACK of the first codeword stream in SCC # 1 or the result of ACK / NACK response messages of the first codeword stream and second codeword stream in SCC # 1, subjected to the logical operation “AND”, is displayed in the HARQ-ACK (1) message, the response ACK / NACK message of the first codeword stream in SCC # 2 or result The clear ACK / NACK messages of the first codeword stream and the second codeword stream in SCC # 2, subjected to the logical AND operation, are displayed in the HARQ-ACK message (2), and the ACK / NACK response message of the first codeword stream in SCC # 3 or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in SCC # 3 subjected to the logical AND operation, is displayed in the HARQ-ACK message (3);

In this case, the three secondary downlink component carriers are sorted according to the order of the carrier indices such that the first secondary downlink component carrier (or cell) in SCC # 1, and the second downlink secondary component carrier (or cell) in SCC are obtained # 2 and the third secondary downlink component carrier (or cell) in SCC # 3.

Preferred Embodiment 19

As shown in FIG. 22, in the TDD system, when the configuration was performed by the base station such that the UE uses the channel select PUCCH format 1b to transmit ACK / NACK response messages using feedback, and let, for example, the base station configure DL PCC and SCC for the UE, and the determined uplink subframe corresponds to only two downlink subframes, then the UE will use the mapping table with M = 4 to transmit ACK / NACK response messages during feedback, and the distinct ACK / NACK message of the first codeword stream in the PCC in the first subframe, or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC in the first subframe, subjected to the logical operation “AND”, is displayed in the HARQ-ACK message ( 0), the ACK / NACK response message of the first codeword stream in the SCC in the first subframe, or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the SCC in the first subframe, subjected to the logical operation “AND”, is displayed in the HARQ message -ACK (1), response message ACK / NACK of the first codeword stream in the PCC in the second subframe or the result of ACK / NACK response of the first codeword stream and the second codeword stream in the PCC in the second subframe subjected to the logical operation “AND” is displayed in the HARQ-ACK message (2 ), and the ACK / NACK response message of the first codeword stream in the SCC in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the SCC in the second subframe subjected to the logical AND operation, is mapped to the HARQ message -ACK (3);

Either the ACK / NACK response message of the first codeword stream in the PCC in the first subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC in the first subframe subjected to the logical operation “AND” is mapped to the first HARQ- message ACK (0), the ACK / NACK response message of the first codeword stream in the PCC in the second subframe, or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the PCC in the second subframe, subjected to the logical operation “AND”, is displayed in first message HARQ-ACK (1), ACK / NACK response message of the first codeword stream in the SCC in the first subframe, or ACK / NACK response messages of the first codeword stream and the second codeword stream in the SCC in the first subframe, subjected to the logical operation “AND” is mapped to the first HARQ-ACK (2), and the ACK / NACK response message of the first codeword stream in the SCC in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second codeword stream in the SCC in the second subframe logical operation "AND" is displayed in four This message is HARQ-ACK (3).

The UE is further provided in another embodiment and is configured to implement the above-described embodiments and their preferred embodiments. Those of the embodiments that have been described previously will not be discussed further. Next, only the UE modules will be described.

23 is a block diagram of a structure of another UE in accordance with an embodiment of the present invention. As shown in FIG. 23, the UE comprises a determination module 232 and a sending module 234, and its structure will be described later.

The mapping module 232 is configured to map ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in accordance with at least one of the following: whether the downlink component carrier or cell is a primary or secondary, sequence of codeword streams a downlink component carrier or cell and a number of codeword streams contained in the downlink component carrier or cell; and the sending module 234 is connected to the display module 232 and is configured to send ACK / NACK response messages using a channel selection with PUCCH format 1b.

In connection with the foregoing, the use of the described embodiments solves the problem that exists in the prior art and that the base station may not correctly perceive ACK / NACK response messages transmitted using feedback by the UE, thereby causing an error, and, thus, ACK / NACK response messages can be correctly processed.

Those of skill in the art will undoubtedly understand that the various modules and steps described above can be implemented using common computing devices and can be combined in a single computing device or distributed on a network of multiple computing devices. Alternatively, they can be implemented using program codes executed by computing devices, and thus can be stored in memory devices so as to be executed by computing devices. In some situations, the illustrated or described steps may be performed in a manner different from that mentioned in this document, or they may be implemented in a module with a single integrated circuit. Therefore, the present invention is not limited to any combination of hardware or software.

The above are only preferred embodiments of the present invention, which should not be construed as limiting the present invention. Those skilled in the art will understand that the present invention may have various changes and variations. All any modifications, equivalent replacements, improvements, etc. within the essence and principle of the present invention should be included in the scope of protection of the present invention.

Claims (15)

1. The method of displaying response messages confirmation / negative acknowledgment (ACK / NACK), characterized in that it contains the steps in which:
the user equipment (UE) determines the number of L bits of ACK / NACK response messages to be transmitted using feedback in accordance with predetermined conditions, the predetermined conditions including at least one of the following: the number of downlink component carriers or cells which are configured for the UE by the base station, and a transmission mode of each of the downlink component carriers; and
The UE maps ACK / NACK response messages in L bits; and
wherein the L bits are processed by channel coding, scrambling, modulation, precoding with transform and time-domain extension and then sent in PUCCH format as DFT-s-OFDM; or
L bits are processed by channel coding and channel interleaving and then multiplexed with data and sent to the base station via PUSCH; and
if the UE is unable to detect PDSCH in the codeword stream corresponding to the downlink component carrier or cell configured for the UE, the UE will generate a NACK response for the downlink component carrier or cell. 2. The method according to claim 1, characterized in that
in a frequency division duplex (FDD) system, the UE determines the number of L bits of ACK / NACK response messages to be transmitted using feedback according to the number of downlink component carriers or cells that the base station has configured for the UE, and a transmission mode of each of the downlink component carriers; and
The UE maps ACK / NACK response messages to the corresponding L bits in accordance with either the order of the first codeword streams and then the component carriers of the downlink or cells, or with the order of the first component carrier of the downlink or cells and then the codeword streams;
wherein the mapping for the downlink component carriers or cells is carried out in the order of first the downlink component carriers or cells and then the downlink component carriers or cells; or
the mapping is performed in accordance with the index of the corresponding downlink component carrier or cell. 3. The method according to claim 1, characterized in that
number of bits $$L={\displaystyle \sum _{i=0}^{M-\mathrm{one}}{x}_i}$$

, i = 0, 1, ..., M-1, while M is the number of downlink component carriers or cells that the base station has configured for the UE, x _i is the number of ACK / NACK response message bits required by the transmission mode of the corresponding component carrier the downlink or cell allocated to the UE, and x _i is equal to one if the transmission mode of the component carrier downlink contains one stream of codewords, and x _i is equal to two if the transmission mode of component carriers of the downlink contains two codeword streams. 4. The method according to claim 1, characterized in that
in a time division duplex (TDD) system, the UE determines the number of L bits of the ACK / NACK response messages in accordance with the number of downlink component carriers or cells that the base station has configured for the UE, the ratio of the uplink subframes and the downlink subframes configurable for the UE and the transmission mode of each of the downlink component carriers; and
The UE maps ACK / NACK response messages to corresponding L bits in accordance with the order of the first codeword streams, then the component carriers of the downlink or cells and, ultimately, the subframes, or with the order of the first codeword streams and then the subframes, and finally carriers or cells;
wherein the mapping for the downlink component carriers or cells is carried out in the order of first the downlink component carriers or cells and then the downlink component carriers or cells; or
the mapping is performed in accordance with the index of the corresponding downlink component carrier or cell; and
wherein the display for the subframes is carried out in the order of the subframes. 5. The method according to claim 1, characterized in that
in a TDD system in which a base station configures a UE to perform an AND operation on ACK / NACK response messages associated with codeword streams using upper layer signaling, the UE determines the number of L bits of the ACK / NACK response messages according to the number downlink component carriers or cells configured for the UE and the ratio of the uplink subframes and the downlink subframes allocated to the UE; and
The UE maps ACK / NACK response messages to corresponding L bits in order of first downlink component carriers or cells, and then subframes, or first order of subframes and then downlink component carriers or cells;
wherein, a mapping performed for downlink component carriers or cells is carried out in the order of first primary downlink component carriers or cells and then secondary downlink component carriers or cells; or
the mapping is performed in accordance with the index of the corresponding downlink component carrier or cell; and
wherein the display for the subframes is carried out in the order of the subframes. 6. The method according to claim 1, characterized in that
in a TDD system in which a base station configures a UE to perform an AND operation on ACK / NACK response messages associated with codeword streams using upper layer signaling, the UE determines the number of L bits of the ACK / NACK response messages according to the number downlink component carriers or cells configurable for the UE, and the ratio of the uplink subframes and the downlink subframes configurable for the UE; and
if the downlink assignment information (DAI) in the downlink control information (DCI) of the base station displays the total number of PDCCHs accumulated according to the order of the first component carriers and then the subframes, the UE will display ACK / NACK response messages in corresponding positions bits according to DAI. 7. A method for displaying ACK / NACK response messages, characterized in that it comprises the steps of:
The UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in accordance with at least one of the following: is the downlink component carrier or cell primary or secondary, the order of the codeword streams, the downlink carrier component or cells and the number of codeword streams contained in the downlink component carrier or cell; and
The UE sends ACK / NACK response messages using channel selection with PUCCH format 1b. 8. The method according to claim 7, characterized in that
The UE maps ACK / NACK response messages to a channel selection mapping table in accordance with the number of downlink component carriers or cells that the base station configures for the UE and the transmission mode of each of the configurable downlink component carriers. 9. The method according to claim 7, characterized in that
The UE maps ACK / NACK response messages to a channel selection mapping table according to whether the downlink component carrier or cell is primary or secondary, and the order of the codeword streams of the downlink component carrier or cell or the number of codeword streams contained in downlink component carrier or cell. 10. The method according to claim 9, characterized in that
The UE maps the ACK / NACK response messages to a channel selection mapping table in order, first, primary component carriers of a downlink or cell, and then secondary carriers of a downlink or cell, or in accordance with a decreasing order defined by the number of codeword streams contained in downlink component carrier or cell. 11. The method according to claim 9, characterized in that for the channel selection display table with M = 2 in the FDD system, the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first stream of code words of the secondary component carrier downlink or cells is displayed in the second HARQ-ACK message;
in a TDD system, an ACK / NACK response message of a first codeword stream of primary component carrier downlink or cells, or a logical AND operation on an ACK / NACK response message of a first codeword stream and a second codeword stream of primary component downlink carriers or the cell is mapped to the first HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary downlink component carriers or cells or the result of the logical operation “AND” on the ACK / NAC response messages K of the first codeword stream and the second codeword stream of the secondary downlink component carriers or cells is mapped to the second HARQ-ACK message. 12. The method according to claim 9, characterized in that for the channel selection display table with M = 3 in the FDD system, the UE is configured to display ACK / NACK response messages corresponding to codeword streams in at least one channel selection display table of the following methods:
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message and the ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell component carrier is mapped to the third HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second codeword stream of the primary downlink component components or cell is mapped to the second HARQ-ACK message, and the ACK / NACK response message of the first stream of code words of the secondary component carrier downlink or cells is displayed in the third HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the primary downlink component components or cells is mapped to the second HARQ-ACK message, and the ACK / NACK response message of the second stream of code words of the primary component carrier downlink or cells is displayed in the third message HARQ-ACK;
the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the primary downlink component components or cells is mapped to the second HARQ-ACK message, and the ACK / NACK response message of the second codeword stream of the secondary component component downlink or cells is displayed in the third HARQ-ACK message;
ACK / NACK response messages of component carriers or cells containing two codeword streams are respectively mapped to the first HARQ-ACK message and second HARQ-ACK message, and ACK / NACK response of component carriers or cells containing only one codeword stream are displayed in the third HARQ-ACK message;
in a TDD system, the UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in the following ways:
ACK / NACK response message of the first stream of code words of the primary component carrier downlink or cells or the result of the logical operation "And" on the response messages ACK / NACK of the first stream of code words and the second stream of code words of the primary component carrier downlink or cells is mapped to the first a HARQ-ACK message, and an ACK / NACK response message of a first codeword stream of the first secondary downlink component carriers or cells or the result of an AND operation on the ACK / NACK response messages the first codeword stream and the second codeword stream of the first secondary component component downlink or cells are mapped to the second HARQ-ACK message; and an ACK / NACK response message of a first codeword stream of a second secondary component downlink or cell carrier, or a logical AND operation on an ACK / NACK response message of a first codeword stream and a second codeword stream of a second secondary downlink component carrier or cell displayed in the third HARQ-ACK message;
wherein the secondary downlink component carriers or cells are sorted in accordance with a predetermined order; wherein the predetermined order is obtained in accordance with the carrier index or in accordance with the value of the CIF carrier index field when cross-carrier scheduling is enabled. 13. The method according to claim 9, characterized in that for the channel selection display table with M = 4
in the FDD system, the UE is configured to display ACK / NACK response messages corresponding to codeword streams in a channel selection mapping table in at least one of the following ways:
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message and the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ- message ACK an ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell component carrier is mapped to the third HARQ-ACK message; an ACK / NACK response message of a first codeword stream of a third secondary component downlink or cell component carrier is mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second codeword stream of the primary downlink component components or cell is mapped to the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first secondary component downlink component carriers or cells is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the second secondary codes downlink component carriers or cells are mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message , the ACK / NACK response message of the first codeword stream of the second secondary downlink component carrier or cell is displayed in the third HARQ-ACK message, and the ACK / NACK response message of the second primary codeword stream downlink component carriers or cells are mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message , an ACK / NACK response message of the second codeword stream of the first secondary component downlink or cell carrier is mapped to the third HARQ-ACK message, and an ACK / NACK response message of the first second codeword stream of the second the downlink component component carriers (or cells) are mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message , the ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell component carrier is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream of the first second a downlink component carrier or cell is mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message , an ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell component carrier is mapped to the third HARQ-ACK message, and an ACK / NACK response message of the second second codeword stream a downlink component carrier or cell is mapped to a fourth HARQ-ACK message;
ACK / NACK response messages of component carriers or cells containing two codeword streams are respectively mapped to a first HARQ-ACK message and a second HARQ-ACK message and ACK / NACK response of component carriers or cells containing only one codeword stream, respectively displayed in the third HARQ-ACK message and the fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary component downlink or cell components is mapped to the first HARQ-ACK message, the ACK / NACK response message of the second codeword stream of the primary downlink component components or cell is mapped to the second HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first secondary downlink component component or cell is mapped to the third HARQ-ACK message, and the ACK / NACK response message of the second codeword stream of the first secondary to a component downlink carrier or cell is mapped to a fourth HARQ-ACK message;
the ACK / NACK response message of the first codeword stream of the primary downlink component carrier or cells is mapped to the first HARQ-ACK message, the ACK / NACK response message of the first codeword stream of the first downlink primary component carrier or cell is mapped to the second HARQ-ACK message , the ACK / NACK response message of the second stream of code words of the primary component carrier downlink or cells is displayed in the third HARQ-ACK message, and the response message ACK / NACK of the second stream of code words of the first secondary a downlink component carrier or cell is mapped to a fourth HARQ-ACK message;
in a TDD system, the UE maps ACK / NACK response messages corresponding to codeword streams to a channel selection mapping table in the following ways:
ACK / NACK response message of the first stream of code words of the primary component carrier downlink or cells or the result of the logical operation "AND" on the response messages ACK / NACK of the first stream of code words and the second stream of code words of the primary component carrier downlink or cells is mapped to the first a HARQ-ACK message, and an ACK / NACK response message of a first codeword stream of a first secondary component downlink or cell component carrier, or an ACK / NACK response message result of a first codeword stream and a second the th stream of code words of the first secondary component carrier downlink or cells subjected to the logical operation "AND" is displayed in the second message HARQ-ACK; ACK / NACK response message of the first codeword stream of the second secondary component downlink or cell carrier or ACK / NACK response message of the first codeword stream and the second codeword stream of the second secondary downlink component carrier or cell subjected to the logical operation “AND” is displayed in the third HARQ-ACK message; ACK / NACK response message of the first codeword stream of the third secondary component downlink or cell carrier, or ACK / NACK response message of the first codeword stream and the second codeword stream of the third secondary downlink component carrier or cell subjected to the logical operation “AND” is displayed in the fourth HARQ-ACK message;
ACK / NACK response message of the first codeword stream of the primary component downlink or cell components in the first subframe or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers or cells in the first subframe subjected to logical operation AND is displayed in the first HARQ-ACK message, ACK / NACK response message of the first codeword stream of the secondary downlink component carriers or cells in the first subframe, or the result is a response x ACK / NACK messages of the first codeword stream and the second codeword stream of the secondary component downlink carriers or cells in the first subframe subjected to the logical operation “AND” are mapped to the second HARQ-ACK message, ACK / NACK response message of the first codeword stream primary downlink component carriers or cells in a second subframe or the result of ACK / NACK response messages of a first codeword stream and a second codeword stream of primary downlink component carriers or cells in a second sub the address subjected to the logical operation “AND” is displayed in the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary component downlink carriers or cells in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second stream of code words of the secondary component carrier downlink or cells in the second subframe subjected to the logical operation "AND" is displayed in the fourth message HARQ-ACK;
ACK / NACK response message of the first codeword stream of the primary component downlink or cell components in the first subframe or the result of ACK / NACK response messages of the first codeword stream and the second codeword stream of the primary downlink component carriers or cells in the first subframe subjected to logical operation "AND" is displayed in the first HARQ-ACK message, the response message ACK / NACK of the first stream of code words of the primary component carrier downlink or cells in the second subframe or the result is the response of the ACK / NACK messages of the first codeword stream and the second primary component carrier codeword stream or downstream cells in the second subframe subjected to the logical operation “AND” is mapped to the second HARQ-ACK message, ACK / NACK response message of the first codeword stream secondary downlink component carriers or cells in a first subframe or the result of ACK / NACK response messages of a first codeword stream and a second codeword stream; secondary component downlink component carriers or cells in a first sub the address subjected to the logical operation “AND” is displayed in the third HARQ-ACK message, and the ACK / NACK response message of the first codeword stream of the secondary component downlink carriers or cells in the second subframe or the result of the ACK / NACK response messages of the first codeword stream and the second stream of code words of the secondary component carrier downlink or cells in the second subframe subjected to the logical operation "AND" is displayed in the fourth message HARQ-ACK;
wherein the secondary downlink component carriers or cells are sorted in accordance with a predetermined order; wherein a predetermined order is obtained in accordance with the carrier index or in accordance with the value of the CIF carrier index field when cross-carrier scheduling is enabled. 14. User equipment, characterized in that it contains:
a determining module, configured to determine the number of L bits of the ACK / NACK response messages in accordance with predetermined conditions, wherein the predetermined conditions include at least one of the following: the number of downlink component carriers or cells that are allocated to the UE by the base station, and a transmission mode of each of the downlink component carriers;
a display module configured to display ACK / NACK response messages in L bits; and
a sending module, configured to, after processing the L bits by channel coding, scrambling, modulation, precoding with transform and time domain extension, send L bits in the PUCCH format as DFT-s-OFDM, or configured to, after processing L bits by channel coding and channel interleaving and then data multiplexing, send L bits to the base station via PUSCH. 15. User equipment, characterized in that it contains:
a display module configured to map ACK / NACK response messages corresponding to codeword streams to a channel selection display table in accordance with at least one of the following: whether the downlink component carrier or cell is a primary or secondary, sequence of codeword streams a downlink component carrier or cell and a number of codeword streams contained in the downlink component carrier or cell; and
a sending module, configured to send ACK / NACK response messages using channel selection with 1b PUCCH format.

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